Bob “Hot Rod” Rohr

There are many styles and approaches to hydronic zoning. The trick is knowing when and how to utilize the products available in the marketplace. Veterans Greg Tubbs and Bob “Hot Rod” Rohr have seen all kinds of zoning applications across North America. They will break zoning down to the basics at the next Coffee with Read more

Three Keys to Hydronic System Protection Maintaining the health of water-based fluids circulating within hydronic systems is paramount in protecting components and maximizing efficiency. Proper air, dirt and magnetic separation are three keys for optimal system performance. Designers and installers might hang their hats on using high-performance separators, however, best practices for hydronic systems may Read more

Expansion tanks are a vital safety component in plumbing and hydronic systems. In the next edition of Coffee with Caleffi™, legend Bob “Hot Rod” Rohr joins Cody Mack to expand your knowledge of these versatile tanks. They will discuss function, sizing and how to avoid common failures. Attendees will also learn about proper placement, multiple-tank Read more

Starting over 60 years ago in a small province in northern Italy, Caleffi has increased its footprint, expanded its international presence, survived the current pandemic, all the while manufacturing some of the most innovative PHVAC, heat metering and renewable products in the world. This past fall, Mechanical Hub was honored to tour the Caleffi S.p.A Read more

https://youtu.be/CrAUeDaCZVQ The ideal fluid in a hydronic heating or cooling system is a fluid without any impurities, air bubbles or dissolved gases. But how is that accomplished? Watch and listen as Caleffi’s Bob “Hot Rod” Rohr hosts “Coffee with Caleffi” and shares the technical duties for this segment with Kevin Freidt, Director of Product Management Read more